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Determinati nr. nat. care verifica inecuatiile :
x<3-[tex] \frac{39}{9} [/tex]


Răspuns :

3 39/9=3 13/3=3+4 1/3=7 1/3(7 intregi si o treime)
x<7 1/3⇒x∈{0,1,2,3,4,5,6,7},pt. x∈N